2 He looked up and noticed three men standing nearby. When he saw them, he ran to meet them and welcomed them, bowing low to the ground. 3 "My lord," he said, "if it pleases you, stop here for a while. 4 Rest in the shade of this tree while water is brought to wash your feet. 5 And since you've honored your servant with this visit, let me prepare some food to refresh you before you continue on your journey." "All right," they said. "Do as you have said." 6 So Abraham ran back to the tent and said to Sarah, "Hurry! Get three large measures of your best flour, knead it into dough, and bake some bread."
Matthew Henry's Commentary on Genesis 18:2-6
Commentary on Genesis 18:1-8
(Read Genesis 18:1-8)
Abraham was waiting to entertain any weary traveller, for inns were not to be met with as among us. While Abraham was thus sitting, he saw three men coming. These were three heavenly beings in human bodies. Some think they were all created angels; others, that one of them was the Son of God, the Angel of the covenant. Washing the feet is customary in those hot climates, where only sandals are worn. We should not be forgetful to entertain strangers, for thereby some have entertained angels unawares, Revelation 3:20.